Class SystemError

Static isSystemError

• isSystemError(error: SystemError): boolean

• Check if an object is indeed a functional SystemError.

  Note

  • Not checking for presence of code property, or for it being a string, as assuming that the object of SystemError type would have it initialized.
  • Empty code errors will return false, due to the ambiguity.

  Usage

  // Try to load JSON
  try{
    loadJson();
  } catch(error) {
    if (SystemError.isSystemError(error)){
      // If error is something that we have defined, throw a more generic error
      throw new SystemError("json_load_fail", "Failed to load JSON file.");
    } else {
      // Rethrow the original error
      throw error;
    }
  }

  Parameters

  • error: SystemError

    Error to check

  Returns boolean

  Returns true if is is a SystemError, false if not.